Striking Gold: Siren Gold Uncovers High-Grade Gold and Antimony at Langdons Project
Siren Gold (ASX: SNG) has unveiled exceptional gold and antimony results from recent fieldwork at its Langdons project in New Zealand's Paparoa Goldfield, reaffirming the site's potential as a significant mining prospect with strategic mineral exposure.
Recent channel sampling across the Langdons historic workings has delivered remarkable assays, with highlights including 38.5 g/t gold and 5.7% antimony over 0.8m from channel samples within the historic open pit area. Other notable results from mullock samples show values up to 37.8 g/t gold and 20.9% antimony from the No.2 Adit.
These latest findings build upon previous fieldwork that produced even more impressive numbers from the Siren Gold Langdons Project.
High-Grade Mineralisation Confirms Historic Potential
The mineralised structures at the Siren Gold Langdons Project extend over a 400-meter strike to the northwest, where they continue under overlying cover. Soil sampling suggests potential analogous mineralisation to the northeast, indicating the possibility of a larger system.
Previous fieldwork has produced impressive results including:
- 506 g/t gold and 6.0% antimony from mullock samples
- 6.08 g/t gold and 9.3% antimony from rock chips
- 10.9 g/t gold and 3.9% antimony from rock chips
Two Distinct Reef Systems with Promising Junction
The company's exploration has identified two separate reef structures at the project:
Langdons Antimony Reef
This reef dips approximately 40° southwest, extending to the northern contact with the overlying Paparoa Coal Measures. Channel sampling from this reef returned the highest grades of 38.5 g/t gold and 5.7% antimony.
Langdons Gold Reef
Located approximately 90 vertical meters below the Antimony Lode, this reef comprises puggy quartz breccia with disseminated pyrite and arsenopyrite. Channel sampling returned grades up to 1.05 g/t gold.
The potential junction of these two reefs with the Midnight Reef forms an exciting exploration target, as intersections of mineralised structures often present enhanced gold deposition opportunities.
"These results are highly encouraging. We are systematically unlocking a goldfield that has produced exceptional grades in the past, and our work confirms that potential still exists today. Not only are we defining significant gold mineralisation, but the project's exposure to antimony as a critical mineral adds a significant strategic dimension," says Siren Gold CEO, Zane Padman.
Understanding Antimony: A Critical Mineral with Strategic Value
Antimony is classified as a critical mineral by many governments due to its importance in defence applications, flame retardants, and lead-acid batteries. The metal's value is enhanced by supply concentration, with China controlling approximately 53% of global antimony production.
What is antimony and why does it matter?
Antimony is a silvery-white, brittle metallic element that occurs naturally in over 100 mineral species. It's primarily extracted from stibnite, an antimony sulphide mineral. Despite being relatively unknown to the general public, antimony plays crucial roles in modern industry.
The mineral serves several important functions:
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Flame retardants: Antimony trioxide is extensively used in flame-retardant formulations for plastics, textiles, and electronics.
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Lead-acid batteries: Antimony alloys with lead improve the mechanical strength and electrical properties of battery grids.
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Defence applications: Used in ammunition, infrared detection devices, and night-vision equipment.
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Emerging battery technologies: Antimony is increasingly important in next-generation battery development, including liquid metal batteries for grid-scale storage.
The inclusion of significant antimony values alongside gold at the Siren Gold Langdons Project adds strategic importance, particularly as Western nations seek to reduce dependency on Chinese supply chains.
Historic Mining Confirms Exceptional Grades
The Langdons Antimony Lode has a rich history dating back to 1879, with multiple mines operating on various reefs including Langdons, Victory, Julian, Liberty, and Wilsons. Early reported grades were astounding – up to 2,610 g/t gold and 1,120 g/t silver.
Historic production figures indicate the Langdon and Victory reefs were mined successfully for five years, producing 1,586 ounces of gold from 809 tons of ore – an average grade of 60 g/t gold.
Despite this impressive history, the area has seen very limited modern exploration, with only minimal work undertaken in the 1980s by Tasman Gold Developments.
Project Geology
The Siren Gold Langdons Project is situated in the Paparoa Goldfield, approximately 50km southwest of Reefton. The same Greenland Group rocks that host significant gold deposits in the Reefton Goldfield also outcrop in the Paparoa belt, 25km to the west.
Mineralisation is centred around a tightly folded antiform/synform pair that trends northwest-southeast, similar to the Reefton style but rotated from the typical north-south trend.
Anomalous gold, stibnite and arsenic soil geochemistry occur over a strike length of 400m and include the Langdons, Midnight, Liberty and Victory reefs.
The soil geochemistry anomalies extend a further 200m along strike to the northwest, indicating that mineralisation likely extends under the cover rocks. Two additional antiforms that could host mineralisation have recently been mapped up to 800m north.
Path Forward: Advancing to Drill Stage
Siren Gold has an exploration permit application submitted for the Langdons Project, which upon approval will allow the company to advance to drilling stage (following relevant environmental approvals).
The company's next steps include:
- Uncovering historically mined reefs and locating historic workings, particularly the Victory Reef
- Conducting targeted soil geochemistry and trenching to connect the Langdons, Midnight and Liberty reefs
- Integrating mapping, sampling and soil geochemistry data into a comprehensive 3D model to prioritise drill targets
- Extending geochemical surveys to test for analogous mineralised structures identified to the north
Why Investors Should Watch Siren Gold
The Siren Gold Langdons Project represents a compelling investment opportunity for several reasons:
Exceptional Grades
Both historic and recent sampling confirm high-grade gold and antimony mineralisation, with values significantly above global averages.
Strategic Mineral Exposure
The antimony component provides exposure to critical minerals markets, potentially attracting premium valuations as governments focus on securing supply chains.
Untapped Potential
Despite historic mining success, the area has seen minimal modern exploration, suggesting significant discovery potential remains.
Clear Development Path
With an exploration permit application submitted and systematic fieldwork underway, the company has established a clear pathway toward resource definition.
As global markets increasingly focus on both precious metals and critical minerals, the Siren Gold Langdons Project positions the company at an intriguing intersection of investment themes.
"Globally, governments are showing increasing interest in securing antimony supply chains, which enhances the prospectivity of Langdons further. We are rapidly building our understanding of the geology and defining clear targets for our maiden drill program," added Padman.
With systematic exploration continuing and a drilling program on the horizon, investors can anticipate a steady flow of updates as Siren Gold works to unlock the full potential of this promising project.
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